Overview

overview

9

Static

static

7

biamou.bin.exe

windows7_x64

9

biamou.bin.exe

windows10-2004_x64

9

Sharing

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General

  • Target

    biamou.bin.zip

  • Size

    3.5MB

  • Sample

    220119-n4xvbshec2

  • MD5

    a796ad431d2f4e81cadcdd19b446ecbf

  • SHA1

    5da32bb3b61935f6e2e448d37d13b88c0e10ca7c

  • SHA256

    6c5e877a3894dd9a70818377926cc7bc95f68bd589cd8cdaf8ebefc9e2702635

  • SHA512

    19ebe521f7c8c415342a18b25c4c02cc454da3e995fd595adc2bfbd374758d62d596adbec57cb3bd8d95f50fcc91e1b6bde54a99d55970a542143dabc8526200

Score
9/10
evasionthemidatrojan

Malware Config

Targets

    • Target

      biamou.bin

    • Size

      3.5MB

    • MD5

      a9334eeb8615854db602db4447beeab2

    • SHA1

      066ad5133b7435b75fe10d7af693c9b6811dc7a9

    • SHA256

      d819e0689e1782f676e1644d503f31dae35589ea29b2b7169f69b81abea21d75

    • SHA512

      a2f27c7716e2d7c2091a4f4a8b7fab7a9bd32d1640411cb9799756427b10468bc917963dab13c626d63fc6e0a081308779160f44a2987e68c250b41998d43b5c

    Score
    9/10
    evasionthemidatrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Drops startup file

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks